A.10 L: Protection FunctionL parameters provide protection to the drive and motor, including control during momentary power loss, stall prevention,frequency detection, fault restarts, overtorque and undertorque detection, and other types of hardware protection.u L1: Motor ProtectionNo.(Addr.Hex)Name LCD Display Description Values PageL1-01(480) Motor OverloadProtection SelectionMtr OL Charact0: OL1 Disabled1: VT Motor4: PM Motor0: Disabled1: General purpose motor (standard fan cooled)4: PM motor with variable torqueThe drive may not be able to provide protection when usingmultiple motors, even if overload is enabled in L1-01. Set L1-01to 0 and install separate thermal relays to each motor.Default: <1>Range: 0, 1, 4 99L1-02(481) Motor OverloadProtection Time MOL Time Const Sets the motor thermal overload protection (oL1) time. Default: 1.0 minMin.: 1.0Max.: 5.0 100L1-03(482)Motor Overheat AlarmOperation Selection(PTC input)Mtr OH Alarm Sel0 : Ramp to Stop1: Coast to Stop2: Fast-Stop3: Alarm onlySets operation when the motor temperature analog input(H3-02 or H3-10 = E) exceeds the alarm level.0: Ramp to stop1: Coast to stop2: Fast Stop (decelerate to stop using the deceleration time inC1-09)3: Alarm only (“oH3” will flash)Default: 3Range: 0 to 3 101L1-04(483)Motor Overheat FaultOperation Selection(PTC input)Mtr OH Fault Sel0 : Ramp to Stop1: Coast to Stop2: Fast-StopSets stopping method when the motor temperature analog input(H3-02, or H3-10 = E) exceeds the oH4 fault level.0: Ramp to stop1: Coast to stop2: Fast Stop (decelerate to stop using the deceleration time inC1-09)Default: 1Range: 0 to 2 101L1-05(484)Motor TemperatureInput Filter Time (PTCinput) Mtr Temp Filter Adjusts the filter for the motor temperature analog input(H3-02, or H3-10 = E). Default: 0.20 sMin.: 0.00Max.: 10.00 102L1-08(1103) oL1 Current Level oL1 Current Lvl Sets the reference current for motor thermal overload detectionfor the motor in amperes.Default: <2>Min.: 10% ofdrive ratedcurrentMax.: 150% ofdrive ratedcurrent <3>102L1-13(46D)ContinuousElectrothermalOperation SelectionMtr OL Mem Sel0: Disabled1: Enabled2: Enabled(RTC)0: Disabled1: Enabled2: Enable using Real Time Clock Default: 1Range: 0 to 2 102<1> Default setting is determined by parameter A1-02, Control Method Selection.<2> Default setting is determined by parameters o2-04, Drive Model Selection, and C6-01, Drive Duty Selection.<3> Display is in the following units: 5A0007 to 5A0017: 0.01 A units; 5A0022 to 5A0242: 0.1 A units.u L2: Momentary Power Loss Ride-ThruNo.(Addr.Hex) Name LCD Display Description Values PageL2-01(485) Momentary Power LossOperation SelectionPwrL Selection0: Disabled1: Enbl with Timer2: Enbl whl CPU act0: Disabled.Drive trips on Uv1 fault when power is lost.1: Recover within the time set in L2-02.Uv1 will be detected if power loss is longer than L2-02.2: Recover as long as CPU has power.Uv1 is not detected.Default: 2Range: 0 to 2 102L2-02(486) Momentary Power LossRide-Thru Time PwrL Ridethru tSets the Power Loss Ride-Thru time. Enabled only whenL2-01 = 1 or 3. Default: <1>Min.: 0.0 sMax.: 25.5 s103A.10 L: Protection FunctionYASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual 213A Parameter List
